gd1972-11-13.GEMS.track1.flac:6c86f527b4289960044d6ae8eeee0b99 gd1972-11-13.GEMS.track2.flac:ac1c44e213aa59fa8d83ed4abb7fc9a3 gd1972-11-13.GEMS.track3.flac:bc219b95ef371dadf93229dae722c432 App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned